The payments come despite the fact that 1. Official figures show that dentists are carrying out greater numbers of treatments per patient than in the past, as well as more complicated procedures. Those in the highest earning brackets also put in longer hours, with the majority working more than 45 hours a week, the figures, released by the NHS Information Centre. NHS dentists extracting more teeth. The income is before tax but after expenses, which typically include the costs of renting surgeries and paying staff, have been taken into account. The figures, based on dentists’ tax returns, include those who work solely for the health service as well as dentists who have a mix of NHS and private work. The new contract was deeply controversial among dentists and around 1, left the NHS before it was even implemented.